Ibanez RGMS8PB-CBS
The Ibanez RGMS8PB-CBS offers an accessible eight-string multi-scale design, a comfortable slim neck, and pickups that reviewers found clear and lively. Conflicting reports of fret and electronics problems make a careful inspection worthwhile.
★★★★☆ 4/5 · 2 buyer reviews · 6 min read · updated 2026-10-07 · Tested by Cal Whitaker
Ibanez RGMS8PB-CBS review
The RGMS8PB-CBS is an eight-string electric guitar with a multiscale neck, two humbucking pickups, and a figured poplar burl top. It has a listed price of 579 and has been available since July 2025. Its specifications resemble those of the Ibanez RGMS8, with the burl top providing the main visible distinction. That makes this model a practical option for players drawn to the RGMS8 platform who prefer the Cosmic Blue Starburst finish and figured top.
There is a useful split in the available player feedback. One owner describes the guitar as a bargain, praising its weight, comfortable slim neck, and clear, punchy pickup sound. Another reports serious setup and electronics problems on their example, including widespread fret buzz and grounding trouble. Those experiences point to a guitar with appealing core design and tone, but one whose individual setup and quality control deserve a careful check.
Build and multiscale layout
The body is nyatoh, topped with poplar burl. A five-piece maple and walnut neck is bolted to the body, with a jatoba fingerboard and 24 jumbo frets. The white, offset step-dot inlays provide position markers. Ibanez's Wizard III-8 multi-scale neck profile combines a slim shape with a fretboard radius of 400 mm, or 15.75 inches.
Scale length runs from 648 mm (25.5 inches) on the shorter side to 692 mm (27.2 inches) on the longer side. This arrangement gives the lower strings a longer scale while keeping the upper strings shorter. The nut measures 55 mm (2.17 inches) wide, a substantial span that comes with the territory on an eight-string instrument. The included string gauges are.009,.011,.016,.024,.032,.042,.059, and.080.
One owner found the guitar light for an eight-string and reported no neck dive. They also found the slim neck comfortable, with frets that sat neatly within the fingerboard edges. A different report described high frets across the board and buzzing, so a hands-on inspection or a proper setup may matter more here than the specification sheet suggests. The first owner also noticed a few minor rough spots on the neck. That was not a major concern for them, but it is worth checking the neck finish in person.
Pickups, controls, and hardware
Two Array 8 MS humbuckers feed a straightforward control layout: one volume knob, one tone knob, and a five-way switch. The favorable report describes the sound as punchy and defined, with enough sparkle for clean and overdriven tones rather than relying solely on heavy distortion. The owner also singled out the single-coil-style sound from one switch position. That impression is encouraging for players who want more than a thick, high-gain voice from an extended-range guitar.
There is no tremolo. The bridge is an Ibanez Mono-Rail design, with separate saddles for the strings, and the hardware has a Cosmo Black finish. Ibanez machine heads complete the setup. One owner, however, found the tuners unreliable. Another reported a grounding issue and loss of sound when switching between pickup positions. These are significant problems if present on the instrument in hand, although they are individual reports rather than proof that every RGMS8PB-CBS has the same faults. Test all five switch positions, listen for hum, and check tuning stability before committing to a specific unit.
Verdict
The RGMS8PB-CBS has a compelling combination of an eight-string multiscale layout, a slim Wizard neck, and a poplar burl top. The positive playing impressions are specific: low weight, no neck dive, comfortable neck dimensions, and pickups that retain clarity in clean and overdriven settings. Those qualities give it appeal for players who want an extended range without a sound limited to high gain.
The caveat is consistency. Reports range from neatly seated frets to widespread buzzing, and the complaints about grounding, switching, and tuning should not be ignored. At this price, the top and overall design are attractive, but a buyer should inspect fretwork, test the electronics, and confirm a stable setup. If those checks go well, the RGMS8PB-CBS offers a strong feature set and a distinctive look. If you expect uniformly polished fretwork and trouble-free electronics straight out of the box, budget time for a careful evaluation.
Shipping and duties
The retailer ships from its warehouse in Germany. Prices are shown in US dollars and do not include import duties. Orders under roughly $800 usually clear US customs without duty; above that, a duty of a few percent may be collected on delivery. 30-day money-back and a 3-year warranty apply.
Scores by area
Where it shines, where it stumbles
What convinced me
- Multi-scale design pairs a 25.5-inch low-string scale with a 27.2-inch high-string scale.
- Reviewers praise the slim, comfortable neck, light weight, and lack of neck dive.
- The pickups are described as clear and punchy, with useful clean and overdriven tones.
What bugged me
- Setup and quality-control reports conflict: one reviewer found clean fretwork, while another reported high frets, buzzing, and rough fret surfaces.
- One reviewer reported unreliable tuning machines and grounding and switching problems.
- No case or gig bag is included.
Is it the right one for you?
Good pick if
A good fit for players seeking an affordable eight-string with a multi-scale neck, a slim profile, and clear tones for clean and overdriven playing. Also appealing to buyers who value a light instrument and the poplar burl finish.Look elsewhere if
Less suitable for players who need consistently verified fretwork and electronics straight out of the box. Look elsewhere if you require an included case or gig bag.Suggested level: Intermediate
Specifications
- Color
- Blue
- Body
- Nyatoh
- Top
- Poplar
- Neck
- Maple, Walnut
- Fretboard
- Jatoba
- Frets
- 24
- Scale length
- 692 mm
- Pickup
- HH
- Tremolo
- No
- Including case
- No
- Incl. gigbag
- No
- Number of strings
- 8
- Style
- ST
- Long scale
- 692 mm
What other players say
Customer feedback is mixed but generally favorable about the guitar's value, light weight, slim neck, and clear-sounding pickups. One reviewer was pleased with the fretwork and comfort, while another reported high frets, buzzing, rough surfaces, unreliable tuning machines, and electrical faults. The poplar burl top also received praise for its appearance.
The guitar is a bargain for the price.
the tone is punchy, not muffled and with a good amount of sparkle and definition.
high frets all around the place. buzz all around the fretboard
Up close
Before you decide
Questions players ask
Is the multi-scale layout difficult to get used to?
The guitar has a 25.5-inch to 27.2-inch scale and a 55 mm nut. One reviewer found its slim Wizard III-8 neck comfortable, but whether the angled frets suit you is personal.
Are the pickups suitable for clean tones?
A reviewer praised their punch, sparkle, and definition for both clean and overdriven sounds, and specifically liked the single-coil setting. Another review also described the pickups positively.
Does it need a professional setup?
The reviews disagree about fret condition. One found the frets well placed, while another reported high frets and buzzing, so inspect the instrument and budget for a setup if needed.
Does it come with a case or gig bag?
No. The listed specifications say that neither a case nor a gig bag is included.
Is it a good value at this price?
One reviewer called it a bargain and praised its playability and tone. The reported hardware and quality-control issues are worth weighing against the price.
The last word from the bench
At this price, the RGMS8PB-CBS combines an attractive poplar burl top, a light body, and a multi-scale neck with a useful range of clean and overdriven tones. One reviewer reported comfortable playability and well-finished frets, while another encountered fret buzz, rough fret surfaces, and electronics faults. Those inconsistencies make setup and quality control the main concerns. Check the instrument carefully on arrival, particularly the frets, tuning machines, and switching.
Hanging next to it
Ibanez RGMS8PB-CBS
Today's price and delivery time are shown at the retailer.
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